Dynamic segregation phenomena during oxidation of titanium ferrites

• Published in: Journal of materials chemistry Vol. 9; no. 5; pp. 1179 - 1183
• Main Authors: Domenichini, Bruno, Perriat, Pascal, Merle, Jérôme, Basset, Karine, Guigue-Millot, Nadine, Bourgeois, Sylvie
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 1999
• Subjects: Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Equations of state, phase equilibria, and phase transitions; Exact sciences and technology; Materials science; Oxidation; Physics; Solid-fluid interfaces; Solubility, segregation, and mixing; phase separation; Surface treatments; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties); Inorganic compounds; Segregation; Ternary compounds; Transition element compounds; Surfaces; Experimental study; Photoelectron spectroscopy; Ferrites; Titanium oxides; Ion mobility; Dynamics; Reaction mechanism; X radiation; Oxidation; Iron oxides

The cationic composition of three types of titanium ferrite Fe2.5Ti0.5O4 was analysed by XPS during oxidation in order to reveal dynamic segregation phenomena. These samples included two pulverised materials obtained by high energy ball milling followed by heat treatment under a well controlled redu...